JP2001357635A - Method for verifying disk defect managing area information and test device for performing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a verifying method for verifying whether defect managing area(DMA) information is to be normally generated or updated after reinitialization while a defect list is removed without detection through disk recording/reproducing device and to provide a test device for performing the method. SOLUTION: It is desirable that a step for performing a reinitializing mode while the prescribed defect list existing in DMA of a test disk is removed in the recording/reproducing device by using the test disk having test reference information and generating test information from generated defect management information and a step for comparing reference information predicted by the reference information with test information and supplying a verification result on test information are included.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device capable of recording and reproducing a recordable and reproducible disk, and more particularly, to a device capable of recording and reproducing a disk having a defect management area (Defect Management Area).
The present invention relates to a method for verifying whether information is normally generated or updated, and a test apparatus for performing the method.

[0002]

2. Description of the Related Art The above-mentioned recordable / reproducible disk is an optical disk for recording and reproducing information by utilizing the property of light, such as a laser, and is exemplified by a DVD-RAM. This DVD-RAM is a recordable disc. "DVD Specification
s for Rewritable Disc Part 1
Physical Specifications v
rsion 2.0. According to the standard, the aforementioned DVD
-RAM has 4 DMAs (DMA1, DMA2, DM2) per side of the disk to manage defects on the disk.
A3, DMA4).

[0003] Among these four DMAs, DMA1 and DMA2 are used.
Are located in the lead-in area adjacent to the inner diameter of the disc as shown in FIG. 1, and DMA3 and DMA4 are located in the lead-out area adjacent to the outer diameter of the disc. Each DMA is followed by a spare sector.

Each of such DMAs has a disk definition structure (Disc Definition Structure).
ure, hereinafter abbreviated as “DDS”) and a primary defect list (P
primary Defect List, hereafter "PDL"
And the secondary defect list (Secondary D)
effect List (hereinafter, abbreviated as “SDL”). The above-mentioned DDS has a disk verification flag, DD
The S / PDL update counter and information on the formatted structure of the disk such as the starting logical sector number for each area are included. The PDL includes information on all defective sectors on the disk found at the time of disk initialization. The SDL includes information on the sector number of the first sector of the defective block that occurred during use of the disk, information on the sector number of the first sector of the spare block to be replaced with the defective block, and information on the spare space.

Although the information stored in the DMA can be read and used immediately as described above, it also includes information that is changed depending on the position and the number of defects existing on the disk, and is registered in the DMA. Information obtained through an operation based on defect information is also included. The information obtained through the operation based on the defect information is the start sector number of each area or the position information of the logical sector number 0.

[0006] The existence of four such DMAs per disk surface is intended to prevent erroneous defect management due to errors in DMA information. And D
Since the MA information is closely related to the physical sector of the data, a recording medium such as a movable optical disc is
If the information of A is recorded and read excessively, a compatibility problem between the disc recording and reproducing apparatus occurs.

[0007] This includes a recording and reproducing layer of a disk recording and reproducing apparatus (for example, a DVD-RAM recording and reproducing apparatus) as a file system layer, a host interface layer for connecting a recording and reproducing disk recording and reproducing apparatus with a host computer, and a physical layer. When a disc is divided into a physical disc recording / reproducing apparatus (or disc driving apparatus) layer and a recording medium layer for recording and reproducing a physical signal, recording and reading of DMA information are performed below the physical disc recording and reproducing apparatus layer. Is done.

That is, in an actual file system, user information desired to be recorded or reproduced is transferred to a disk recording / reproducing apparatus using only a logical sector number, and the disk recording / reproducing apparatus converts the logical sector number to a physical sector number. The recording or reproduction process for the user information is performed in place of a different sector number. At this time, the DMA information is used. Therefore, when the DMA information is erroneously read or erroneously read by one disk recording / reproducing device, a problem arises that the data cannot be read or used correctly by another disk recording / reproducing device.

Therefore, there is a need for a method of accurately reading DMA information recorded on a disk by a disk recording and reproducing apparatus and confirming whether to accurately record and generate or update the DMA information on the disk. It had been.

[0010]

SUMMARY OF THE INVENTION The present invention has been devised in accordance with the above-mentioned requirements, and has been described in detail.
It is an object of the present invention to provide a verification method for verifying whether to generate or update MA information normally.

Another object of the present invention is to provide a test in which all kinds of defect information are present in a blank disk and a PDL at the time of reinitialization while removing a defect list without performing verification through a disk recording and reproducing apparatus. It is another object of the present invention to provide a verification method for verifying whether the DMA information of a disk generated using a reference DMA mirror file is generated or updated normally.

Still another object of the present invention is to provide a test apparatus for confirming whether DMA information is normally generated or updated during reinitialization while removing a defect list without performing verification through a disk recording and reproducing apparatus. To provide.

[0013] Additional objects and advantages of the invention will be set forth in and apparent from the following detailed description, and may be learned by the embodiments of the invention.

[0014]

According to the present invention, there is provided a method for generating or updating DMA information of a recording and reproducing apparatus capable of recording and reproducing a disk having DMA information. In the method of verifying the above, a test disc having test reference information is used, and the recording and reproducing apparatus uses the DM of the test disc.
After performing a re-initialization mode while removing a predetermined defect list existing in A, a step of generating test information from the generated defect management information and comparing the test information with reference information predicted by the test reference information And providing a verification result with respect to the test information.

In order to achieve the object to be achieved by the present invention, an apparatus according to the present invention comprises: an apparatus for testing a function of generating or updating DMA information of a recording and reproducing apparatus capable of recording and reproducing a disk having DMA information; After performing a re-initialization mode while removing a predetermined defect list existing in the DMA of the test disk using a test disk having test reference information and a test disk using the test disk, A drive device for a reference disk that generates test information from DMA information recorded on a test disk, and a verifier that compares test information with reference information predicted based on the test reference information and provides a verification result regarding the test information. It is desirable to include.

[0016]

Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. Identical components refer to identical numbers. FIG. 2 is a functional block diagram of a test apparatus for a disk drive according to the present invention. The C-1 disk 201, the DMA mirror file providing unit 203, the reference disk drive 205, the C-2 disk 207, and the drive of the test target disk Device 209, C
-2 'disk 211, DMA mirror file 213 of C-2' disk, and verifier 215.

The C-1 disk 201 was manufactured to have a physical defect to test a disk drive capable of recording and reproducing information on a rewritable disk such as a DVD-RAM. This is a test disk and a blank disk on which no information is recorded. As long as there is only a deliberate defect without recording information on the C-1 disc 201, the C-1 disc 201 can be regarded as free.

The physical defect existing in the C-1 disk 201 is used as information that is known in advance when testing a desired disk drive. Further, C
-1 disc 201 relates to a disc that can be recorded again, “DVD Specifications for R
rewritable Disc Part1 Physi
cal Specifications versions
2.0. This disk is configured so as to satisfy the condition of the DVD-RAM of the phase change recording system having the capacity of 4.7 gigabytes specified in the standard.

The DMA mirror file providing unit 203 is shown in FIG.
As described above, the present invention provides a DMA mirror file of test reference information that includes information on DDS, PDL, and SDL and satisfies a condition that the additional margin area is not tightly packed.

In particular, the DMA mirror file providing unit 203
Provides a test reference DMA mirror file configured to have all types of defects in the PDL. In other words, the DMA mirror file of the test standard includes a P-list composed of information about defective sectors defined by the disk manufacturer in the PDL, and a G1-list composed of information about defective sectors found during the verification process for the disk. The list includes all G2-lists composed of a list and information on defective sectors moved from the SDL without verification. The additional margin area is a margin area for linear replacement of a defect that occurs during use of the disk, and is an area that is additionally allocated at the time of initialization or after initialization.

Furthermore, when the disk drive 209 to be tested is re-initialized in order to enhance the test effect, a test including defect information at a special position so as to satisfy a condition in which an error is most likely to occur. Provide a reference DMA mirror file. That is, as shown in FIG. 3, a test reference DMA including defect information configured such that error sectors are concentrated around a physical sector where the first logical sector must be located. By providing a mirror file, "DVD Speci
fictions for Rewritable D
isc Part1Physical Specific
ations version 2.0. Satisfies the algorithm for all cases presented in the standard.

A test reference DMA mirror file in which a first sector and a last sector of each area are treated as an error and a defective sector is set so that the total number of usable sectors in each area does not become a multiple of 16 times. I will provide a. The above-mentioned mirror file is a file having the contents like an actual file, but having a shape where the actual file can be physically located and which exists at another location.

The reference disk drive 205 is a modified test disk drive for testing a recording and reproducing apparatus capable of recording and reproducing information on and from the disk. The reference disk drive unit 205 has the C-1 disk 201 installed therein and the DMA mirror file providing unit 20.
When the DMA mirror file of the test reference is provided from 3, the C-2 disc 207 in which the DMA mirror file of the test reference is recorded on the C-1 disc 201 is generated. At this time, the DMA mirror file of the test reference recorded on the C-1 disk 201 is recorded irrespective of the physical defect existing on the C-1 disk 201. Therefore, the C-2 disk 207 is the C-1 disk 2
The DMA information recorded on the C-2 disk 207, including the DMA mirror file of the test reference created assuming the condition of the reference defect for the test irrespective of the physical defect existing in the C.1, as shown in FIG. Is the information that you know. The C-2 disk 207 is a DVD-related specification for a re-recordable disk.
r Rewritable Disc Part 1 Phys
local Specifications Versi
on 2.0 "is a disk configured to satisfy the condition of a DVD-RAM of a phase change recording system having a capacity of 4.7 gigabytes specified in a standard document of" on 2.0 ".

Furthermore, if the drive unit 205 for the reference disk is installed with the C-2 'disk 211 which has been reinitialized while removing the G2 list and SDL without performing the verification described later,
D recorded on the installed C-2 'disk 211
MA information is read directly, and C based on the read DMA information is read.
It is configured to output the DMA mirror file 213 of the −2 ′ disk as test information. At this time, the test information may be partial information existing in the DMA mirror file 213 of the C-2 ′ disk. For example, some information may be information corresponding to that shown in FIG.

The disk drive 209 to be tested is a disk recording and reproducing apparatus capable of recording and reproducing information on a rewritable disk. The disk drive 209 to be tested has the C-2 configured as described above.
If the disk 207 is installed, DMA P
A process of reinitializing while removing the G2 list stored in the DL and the defect information stored in the SDL is performed.

As a result, if the above-described re-initialization is normally performed in the disk drive 209 to be tested, C-
The DMA of the 2 ′ disk 211 is a D from which the G2 list and the SDL existing in the DMA of the C-2 disk 207 are removed.
MA. The C-2 ′ disk 211 is generated by performing the re-initialization mode on the C-2 disk 207 in the disk drive 209 to be tested, and “DVD Sp” regarding a re-recordable disk
educations for Rewritable
e Disc Part1 Physical Speci
fictions version 2.0. Is a disk configured to satisfy the condition of a DVD-RAM of a phase change recording system having a capacity of 4.7 gigabytes specified in the standard specification. This C-2 'disk 21
1 is provided in the drive device 205 for the reference disk, and outputs test information as described above.

The test information output from the reference disk drive 205 is provided to the verifier 215. The providing method can be implemented such that the driving device 205 of the reference disk directly provides the test information described above.

The verifier 215 predicts a DMA obtained when the disk drive 209 to be tested successfully reinitializes the C-2 disk 207 while removing the G2 list and the SDL without verifying the C-2 disk 207. Utilizing the reference information (or expected value), the D
Verify the MA mirror file 213. The predicted reference information is set by the verifier 215 in consideration of the DMA mirror file of the test reference provided from the DMA mirror file providing unit 203 and the physical defect information of the C-1 disk 201 provided in advance. 4 (A) to 4
As shown in (D), a DMA information table can be provided and used in advance.

FIG. 4A shows a verifier 2 for DMA verification.
15 is a checklist that can be provided in 15 and includes error states of DMA1 to DMA4, DDS / PDL update counters of DDS1 to DDS4 and SDL1 to SDL4, SDL update counters of SDL1 to SDL4, and content items of DMA1 to DMA4.

There are two DMA error status items, one each in the lead-in area and the lead-out area.
To check if there is an error in MA,
There must be no uncorrectable errors in the four DMA1, DMA2, DMA3, and DMA4. If an error that cannot be corrected in any one of the DMAs is found, the verification result indicates that the disk drive 209 to be tested has a C-disk. This is output so as to notify that the generation or update of the DMA of the 2-disk 207 has failed. The output method can be implemented by displaying the loss so that the user can recognize it. When the generation or update of the DMA fails, the user must retry the test from the beginning using a new test disk.

When the DDS / PDL and SDL update counter items are re-initialized while being verified, four DDS1 and DD
Update counter values of DDS / PDL in S2, DDS3, and DDS4 and SDL1, SDL2, SDL3, and S at four locations
"M" indicating the update counter value of DDS / PDL in DL4
It is checked whether the “+ k” value has “M” as the “previous value” and “k” has a value due to being “1”. This is D
This is because the DS / PDL update counter value increases by one each time the DDS / PDL is updated or re-written. The previous value is the drive 209 of the disk under test.
Is the value of the DDS / PDL update counter before reinitialization while removing the defect list without verification. And D
It is checked whether the update counter values of the eight DDS / PDLs existing in MA1, DMA2, DMA3, and DMA4 are all the same.

Further, four SDL1, SDL2, S
“N” indicating the SDL update counter value in DL3 and SDL4
The "+ k" value checks whether "N" has a value due to "previous value" and "k" is "1". This is because the update counter value of the SDL also increases by one each time the SDL is updated or re-entered. The previous value is the value of the SDL update counter before the drive unit 209 of the test target disk performs reinitialization while removing the defect list without verification. Then, it is checked whether the update counter values of the four SDLs are the same.

Further, four locations (DMA1, DMA2, D
It is checked whether the contents of the DMAs of MA3 and DMA4) are all the same.

FIG. 4B shows a checklist that can be provided in the verifier 215 for verifying the DDS structure.
The identifier of S, the disk verification flag, the update counter of DDS / PDL, the number of groups, the number of areas, the position of the initial margin space, the position of the first logical sector number, the position of the starting logical sector number of each area, and the like exist.

That is, the DDS identifier is “0A0Ah”
Is checked, and the value of bit position b7 indicating whether the disk verification flag is in progress is “0” in the 1-byte disk verification flag.
b ”. At this time, if the value of the bit position b7 is "0b", it indicates that formatting is completed, and if "1b", it indicates that formatting is in progress. If "1b", the verifier 215 indicates that formatting has failed. Recognize that you have done it. Further, among the disk verification flags, the spare bit positions b6 to
It is checked whether b2 is all "0b", whether the value of bit position b1 indicating the user verification flag is "1b", and the value of bit position b0 indicating the disk manufacturer verification flag is "1b". Check if

In order to check the update counter of the DDS / PDL, it is determined whether the value of M indicating the update counter of the DDS / PDL is the "previous value" and the DDS before and after the test.
It is checked whether the value of k indicating the increment of the DDS / PDL counter indicating the difference between the / PDL update counter is “1”, and whether the number of groups is “0001h” indicating 1 and the number of areas is 35. Is checked to see if it is “0023h”.

Furthermore, it is checked whether the first sector number of the initial margin space is "031000h" and whether the last sector number is "0341FFh", and the position of the first logical sector number (LSN0) is checked. Is PD
It is checked whether or not the number is determined by the number of defects registered in L. Then, it is checked whether the start logical sector number of each area, that is, each start logical sector number of the second area (Zone 1) to the 35th area (Zone 34) is determined by the number of defects registered in the PDL. Here, the defects registered in the PDL are the physical defects existing on the C-1 disk 201 and the DMA of the test reference provided from the DMA mirror file providing unit 203.
This takes into account all the defects registered in the PDL of the mirror file.

Also, it is checked whether all the remaining spare areas (byte positions 396 to 2047) of the DDS structure are "00h".

The check items for confirming the PDL structure include a PDL identifier, the number of items in the PDL, the configuration state of the PDL item, and an unused area, as shown in FIG.

That is, if the PDL identifier is "0001h"
The number of items in the PDL indicates the physical defect of the C-1 disk 201 and the number of defects included in the PDL of the DMA mirror file of the test reference provided from the DMA mirror file providing unit 203. The configuration status of each PDL item checks the item type and the defective sector number.
Here, the type of the PDL item is “0” indicating a P-list that is known in advance and exists on the C-2 disk 207.
0b ”and G1_l of the defective sector generated at the time of user verification
Check if you have "10b" indicating ist
"11" indicating the G2 list generated by the SDL conversion
Check if "b" is not possessed.

As shown in FIG. 5, when performing the re-initialization mode according to the present invention, the P_list 511 and the G1_li of the old PDL 510 existing on the C-2 disk 207 are performed.
st513 is a new PD existing on the C-2 'disk 211
P_list531 and G1_list53 of L530
3 while being registered as it is,
This is because the defect information existing in the G2_list 515 of L510 is deleted.

For the defective sector number of the PDL, it is checked whether or not the sector numbers are written in ascending order.
h ”.

As shown in FIG. 4D, check items for confirming the SDL structure include an SDL identifier, an SDL update counter, an SSA start sector number, a total number of logical sectors, and a DDS / PDL update counter. , A spare space full flag, the number of items in the SDL, the configuration state of the SDL items, unused space, spare space, and the like.

That is, if the identifier of the SDL is "0002
h ”, and to verify the corresponding SDL update counter item, whether the N value indicating the SDL update counter is“ previous value ”and the value of k indicating the increment value of the counter Check if is "1". DD
DDS / to verify the update counter item of S / PDL
It is checked whether the M value indicating the update counter of the PDL is the “previous value” and whether the k value indicating the increment value of the counter is “1”.

Further, it is checked whether the spare space full flag indicates that the SSA is not tightly packed.
“0” indicating that the number of items in L generally does not exist
Check if it is set to. Also, if the number of items in the SDL is checked because the total used space of the SDL is known, the size of the unused space in the SDL can be determined. Therefore, the DMA mirror file 213 of the C-2 ′ disk
It is checked whether the size of the unused space is the same as the size of the unused space of the SDL that is known based on the number of items of the SDL, and whether the unused space is set to “FFh”. Further, the values of all the spare spaces are “00”.
h ”is set. This is because if the process of removing the SDL list and re-initializing the SDL list without performing verification in the test target disk drive 209 is performed normally, the old disk existing in the C-2 disk 207 as shown in FIG. This is because all the defect information registered in the SDL 520 is removed.

The verifier 215 compares the reference information set as shown in FIGS. 4A to 4D with the information existing in the DMA mirror file providing unit 203 of the C-2 ′ disk, and checks the disk to be tested. The driving device 209 performs G2_
At the time of re-initialization while removing the list 515 and the old SDL 520, it is verified whether the DMA of the C-2 disk 207 has been generated or updated normally.

The verified result is output as a test result for a mode in which G2_list and SDL are removed and reinitialized without testing the disk drive 209 to be tested. The G2 list includes information transmitted from the SDL during initialization without verification, while the SDL includes defect information generated for the SDL during initialization while verifying. The verification result can be embodied to be displayed for the user to see. To this end, the device according to the invention can be embodied to further comprise another display means. Thus, when the user performs the reinitialization mode while removing the defect information of the G2_list and the SDL without verifying the disk drive device 209 to be tested, it is necessary to determine whether the DMA of the installed disk is correctly read. It is possible to determine whether the generated defect information is normally generated or updated in the DMA.

FIG. 6 is a flowchart illustrating the operation of the verification method according to the present invention. In step 601, the blank C-1 disk 20 having the above-described conditions shown in FIG.
1 shows a test reference D having conditions as shown in FIG.
The C-2 disk 207 is generated by recording the MA mirror file.

Next, at step 602, the C-2 disk 207 is set in the disk drive 209 to be tested, and the C-2 disk 207 is reinitialized. At this time, the re-initialization allows the defect list to be removed without performing an overall verification on the C-2 disk 207. At this time, the defect lists to be removed are G2-list and SDL included in the PDL.

Then, the C reinitialized in step 603
The DMA information recorded on the -2 'disk 211 is read, and a DMA mirror file 213 of the C-2' disk is generated based on the above-mentioned DMA information. Stage 60
In step 4, the DMA mirror file 213 of the C-2 'disk
Verify The verification is performed using the predicted reference information (or expected value) in the same manner as performed by the above-described verifier 215 in FIG. That is, G2-l of PDL
It is checked whether all defect information registered in ist and SDL have been removed. If the verification is completed, step 60
In step 5, the verification result is output so that the user can evaluate the function of generating or updating the DMA in the reinitialization mode of the disk drive 209 to be tested.

FIG. 7 shows a drive device 110 for a test object disk having a light source for emitting light, a focusing element 24 for focusing light from the light source on the disk D, and a controller 26 for controlling the light source. The verification process described above
Verify proper operation of controller 26.

[0052]

As described above, the present invention provides a test-standard DMA suitable for a test environment including a blank disc on which no information is recorded and defect information of all kinds.
Place the C-2 disk created using the mirror file in the desired disk recording and playback device, and
2 and re-initialize while removing defect lists such as SDL, then verify the DMA present on the disk and test the corresponding disk recording and reproducing device, so that the desired disk can be You can check the DMA generation or update function of the recording / reproducing device, and make the C-2 disk containing all kinds of defect information directly by the user using the test-based DMA mirror file and blank disk In this way, the economical loss associated with the manufacture and provision of the above-mentioned test C-2 disc separately by the manufacturer can be prevented. The user can produce a C-2 disk using the reference disk drive 205, the DMA mirror file control unit 203, and the C-1 disk 201.

The present invention is not limited to the above-described embodiment, and it goes without saying that modifications can be made by those skilled in the art within the spirit of the present invention. Therefore, the scope of the claims for which the invention is claimed is not limited within the scope of the detailed description, but is limited by the appended claims.

[Brief description of the drawings]

FIG. 1 is a schematic structural view of a rewritable disc.

FIG. 2 is a functional block diagram of a test device according to the present invention.

FIG. 3 is a diagram showing a defect structure of a C-2 disk type.

FIGS. 4A to 4D are diagrams illustrating examples of a detailed checklist for verification performed by the verifier illustrated in FIG. 2;

FIG. 5 is a block diagram showing the relationship between the PDL and SDL of the DMA of the C-2 disk before reinitialization and the PDL and SDL of the DMA of the C-2 disk after reinitialization according to the present invention;

FIG. 6 is an operation flowchart for a verification method according to the present invention.

FIG. 7 is a block diagram of a driving device of the test target disk shown in FIG. 2;

[Explanation of symbols]

 201 C-1 Disk 203 DMA Mirror File Providing Unit 205 Reference Disk Drive 207 C-2 Disk 209 Test Target Disk Drive 215 Verifier

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) G11B 20/12 G11B 20/12

Claims (107)

[Claims] 1. A method for verifying a DMA information generating or updating function of a recording and reproducing apparatus capable of recording and reproducing a disk having defect management area (DMA) information, comprising: using a test disk having test reference information. Generating a test information from the generated defect management information after performing a re-initialization mode while removing a predetermined defect list existing in the DMA of the test disk in the recording and reproducing apparatus; Comparing the reference information predicted by the method with the test information to provide a verification result regarding the test information. 2. The verification method according to claim 1, wherein performing the reinitialization includes performing the reinitialization mode without performing verification on the test disk. 3. The verification method according to claim 1, wherein in performing the re-initialization, the test reference information is a mirror file. 4. The method according to claim 1, wherein in performing the reinitialization, the test reference information is a DMA mirror file configured so that a plurality of defects exist in a primary defect list (PDL). Verification method described. 5. A G2 list and a secondary defect list (S) from the DMA of the test disk in the execution of the re-initialization.
The verification method according to claim 4, further comprising performing re-initialization while removing a predetermined defect list including removal of DL). 6. The verification method according to claim 5, wherein the test information is a mirror file. 7. The verification method according to claim 6, wherein the comparison checks whether the G2 list and the SDL are present in the test information. 8. The verification method according to claim 7, wherein the comparison checks whether the P list and the G1 list included in the test reference information are maintained as they are in the test information. 9. The comparing of the test information includes: verifying a DMA structure of the test information; verifying a disk definition structure (DDS) of the test information; verifying a PDL structure of the test information; Verifying the SDL structure of the test information. 10. The DMA structure verification includes a DMA error state, a DDS / PDL and SDL update counter, a DM
The verification method according to claim 9, wherein the verification method includes A content. 11. The DMA error status check is performed in all four DM locations existing in two locations in the lead-in area and two locations in the lead-out area of the test disk, respectively.
A: checking whether there is an error in any one of A. The checking of the DDS / PDL update counter includes checking the DDS / PDL update counter value in the four DDSs and the DDS / PDL update counter.
Whether the DDS / PDL update counter value in the SDL at the previous location is the "previous value" or the DD before and after the re-initialization execution while removing the predetermined defect list existing in the DMA of the test disk.
Whether the increment value of the DDS / PDL update counter indicating the difference between the S / PDL update counters is "1",
Checking whether the DS / PDL update counters are all the same, and removing a predetermined defect list existing in the DMA of the test disk whether the SDL update counter values in the four SDLs are "previous values". SDL before and after reinitialization execution
Checking whether the increment value of the SDL update counter indicating the difference between the update counters is "1" and checking whether the SDL update counters are all the same; and checking whether the DMA contents of the four locations are the same. The verification method according to claim 10, further comprising: 12. The DDS verification includes a DDS identifier, a disk verification flag, a DDS / PDL update counter, the number of groups, the number of areas, a position of an initial spare space, a position of a first logical sector number, and a start logical sector number position of each area. The verification method according to claim 9, further comprising a check of 13. The method according to claim 13, wherein the DDS identifier is checked by the DDS.
Checking whether the identifier of the DS is a predetermined value includes checking the disc verification flag, wherein the bit value indicating whether the disc verification flag is in progress is "0b", and disc manufacturer verification. And checking whether the bit value indicating the user test is “1b”, and checking the DDS / PDL update counter includes checking the DD value.
Whether the S / PDL update counter value is the "previous value" and the DDS / PD before and after the re-initialization execution while removing the predetermined defect list existing in the DMA of the test disk
Checking whether the increment value of the DDS / PDL update counter indicating the difference between the L update counters is “1”; checking the number of groups includes checking whether the number of groups is a predetermined number; The checking of the number of areas includes checking whether the number of areas is a predetermined number, and the checking of the first logical sector number includes checking a first sector number and a last sector number of the primary spare space (PSA). Checking whether each number is a predetermined sector number, and checking the first logical sector number includes checking whether the first logical sector number position is determined by the number of defects registered in the PDL. The check of the start logical sector number is such that the start logical sector number of each area is determined by the number of defects registered in the PDL. Claim 12 including checking whether
Verification method described in. 14. The verification method according to claim 9, wherein the verification of the PDL structure includes checking a PDL identifier, the number of items in the PDL, and a configuration state of the PDL item. 15. The PDL identifier check is performed by the PDL
Checking whether the DL identifier is a predetermined value, wherein the checking of the number of items is such that the number of items in the PDL is P
Checking whether the number matches the number of defects registered in the DL includes checking the configuration state of the PDL item. If the configuration state of the PDL item is a P list, a G1 list exists, and a G2 list does not exist. 15. The method of claim 14, comprising checking
Verification method described in. 16. The SDL structure is verified by an SDL identifier, an SDL update counter, a starting sector number of a secondary spare space (SSA), a total number of logical sectors, a DDS / PDL update counter, a spare space full flag, and the number of items in the SDL. , S
The verification method according to claim 9, further comprising checking a configuration state of the DL item, an unused space, and a spare space. 17. The SDL identifier check may be performed by using the SDL
Checking whether the identifier is a predetermined value, and checking the SDL update counter removes whether the SDL update counter value is "previous value" and a predetermined defect list existing in the DMA of the test disk. Indicating the difference between the SDL update counters before and after the re-initialization execution
Checking whether the increment value of the DL update counter is "1", wherein the checking of the DDS / PDL update counter is
Whether the S / PDL update counter value is the "previous value" and the DDS / PD before and after the re-initialization execution while removing the predetermined defect list existing in the DMA of the test disk
Checking whether the increment value of the DDS / PDL update counter indicating the L update counter difference is “1”, and checking the start sector number of SSA and the total number of logical sectors by checking the start sector number of SSA and the total number of logical sectors. Checking whether the size is set so as to match the size of the SSA specified by the user. The full space flag, the number of items in the SDL, and the SDL
The check of the configuration state of the item is performed by checking whether the spare space full flag indicates a state in which the SSA is not tightly packed, and indicates that the number of items in the SDL does not exist.
0h ”and whether there is any information on the SDL item. The unused area and spare space check is performed when the size and unused space of the unused space in the SDL are set to predetermined values. 17. The verification method according to claim 16, further comprising checking whether there is a predetermined value in the spare space. 18. The method according to claim 1, wherein the test disk includes defect information at a position that satisfies an error-prone condition when the re-initialization is performed. 19. The test disk as claimed in claim 1, wherein the first sector and the last sector of each area are treated as errors, and the total number of usable sectors in each area is not 16 times. Item 19. The verification method according to Item 18. 20. The verification method according to claim 1, wherein the verification method further comprises recording the test reference information on a blank disk to generate the test disk. 21. The verification method according to claim 20, wherein the test reference information records the test reference information on the free disk irrespective of physical conditions of the free disk. 22. An apparatus for testing a DMA information generating or updating function of a recording and reproducing apparatus capable of recording information on a disk having DMA information or reproducing information from the disk, wherein the recording and reproducing apparatus is configured to include test reference information and physical information. A reference disk drive for performing a reinitialization mode while removing a predetermined defect list existing in a DMA of a test disk having a test defect, and then generating test information from DMA information of the test disk; and the test reference information. A tester that compares the reference information predicted based on the test information with the test information and provides a verification result regarding the test information. 23. The test apparatus according to claim 22, wherein the reference disk drive generates the test information from the test disk that has been subjected to the reinitialization mode without performing verification on the test disk. A test device according to claim 1. 24. The test apparatus according to claim 22, wherein the test reference information is configured in a form of a mirror file. 25. The test apparatus according to claim 22, wherein the test reference information is configured in the form of a DMA mirror file configured to include all kinds of defect lists. 26. The recording and reproducing apparatus according to claim 25, wherein the recording and reproducing apparatus performs a re-initialization while removing a predetermined defect list including a G2 list and an SDL removed by the recording and reproducing apparatus.
A test device according to claim 1. 27. The test apparatus according to claim 26, wherein the test information is a mirror file. 28. The verification device according to claim 28, wherein the test information includes the G
28. The test apparatus according to claim 27, wherein the test apparatus is configured to check whether or not the two lists and the SDL exist. 29. The apparatus according to claim 28, wherein the verifier is configured to check whether a P list and a G1 list included in the test reference information are maintained as they are in the test information. Test equipment as described. 30. The tester according to claim 28, wherein the verifier is a DMA of the test information.
Verifying the structure, verifying the DDS of the test information, verifying the PDL structure of the test information,
The test apparatus according to claim 27, wherein the test apparatus is configured to verify a DL structure. 31. The verifier may include a DMA error condition, D
The test apparatus according to claim 30, wherein the DS / PDL, the SDL update counter, and the DMA contents are checked to verify the DMA structure. 32. The verifying device checks whether an error exists in any one of the four DMAs, two in each of the lead-in area and the lead-out area of the test disk. DDS / PDL update counter value in four DDSs and D in four SDLs
A DDS / PDL update counter indicating whether the DS / PDL update counter value is a “previous value” or a difference between the DDS / PDL update counters before and after reinitialization while removing a predetermined defect list existing in the DMA of the test disk. The DDS / PDL update counter is checked whether the increment value of “1” is equal to “1” and whether the DDS / PDL update counters are all the same.
Of the SDL update counter is the “previous value”, or the increment value of the SDL update counter indicating the difference between the SDL update counter before and after the re-initialization is executed while removing the predetermined defect list existing in the DMA of the test disk. 32. The test apparatus according to claim 31, wherein it is checked whether it is "1" and whether the SDL update counters are all the same, and whether the contents of the four DMAs are all the same. 33. The verification device, comprising: a DDS identifier, a disk verification flag, a DDS / PDL update counter, the number of groups, the number of areas, a position of an initial spare space, a position of a first logical sector number, and a start logical sector number position of each area. 31. The test apparatus according to claim 30, wherein the DDS is verified by checking the DDS. 34. The verifier checks an identifier of the DDS, and determines whether a bit value indicating whether the disc is in progress by the disc verification flag is “0b”, a bit value indicating a disc manufacturer verification, and It is checked whether the bit value indicating the user test is “1b”, and the DDS / PD is checked.
DDS / PDL update indicating whether the L update counter value is “previous value” and a difference between the DDS / PDL update counters before and after reinitialization while removing a predetermined defect list existing in the DMA of the test disk. Checking whether the increment value of the counter is "1", checking the number of groups, checking the number of areas, checking the first sector number and the last sector number of the initial spare space, Checking whether the first logical sector number position is determined by the number of defects registered in the PDL, and checking whether the starting logical sector number of each area is determined by the number of defects registered in the PDL. The test device according to claim 33. 35. The verifier checks the PDL identifier, the number of items in the PDL, and the configuration state of the PDL item as check items for verifying the PDL structure.
31. The test device according to claim 30, which verifies the structure. 36. The verifier checks the PDL identifier, checks whether the number of items in the PDL matches the number of defects registered in the PDL, and adds a P-list to the configuration state of the PDL item. 36. The test apparatus according to claim 35, wherein it is configured to check whether a G1 list exists and a G2 list does not exist. 37. An SDL identifier, an SDL update counter, a start sector number of an SSA, a total number of logical sectors, a DDS / PDL update counter, a spare space full flag, a number of items in the SDL, a configuration state of an SDL item, The test apparatus according to claim 30, wherein the SDL structure is verified by checking the used space and the spare space. 38. The verifier checks the SDL identifier, and checks whether the SDL update counter value is a “previous value” and whether the increment value of the SDL update counter is “1”, DDS indicating whether the value of the DDS / PDL update counter is the "previous value" and a difference between the DDS / PDL update counter before and after the execution of the reinitialization while removing a predetermined defect list existing in the DMA of the test disk. The increment value of the / PDL update counter is "1"
The SSA is checked to see if the start sector number and the total number of logical sectors of the SSA are set to match the size of the SSA specified by the user. The status is set to “0”, indicating that the number of items in the SDL does not exist. It is checked whether there is information about the SDL item, and the size of the unused space of the SDL is checked to determine whether the unused space is available. 38. Checking whether the reserved space has a predetermined value and checking whether the spare space has a predetermined value.
A test device according to claim 1. 39. The test disk according to claim 2, wherein the re-initialization includes defect information at a position that satisfies an error-prone condition when the re-initialization is performed.
3. The test apparatus according to 2. 40. The test apparatus according to claim 22, wherein the reference disk drive generates the test disk by recording the test reference information on a blank disk. 41. The test apparatus according to claim 40, wherein the reference disk drive records the test reference information on the empty disk irrespective of physical conditions of the empty disk. 42. A method for verifying whether or not said DMA information is generated or updated correctly by a recording and reproducing apparatus for recording information on an optical disk having DMA information and reproducing information from said optical disk, comprising: Setting a test criterion for re-initialization while removing the existing defect list; and re-initializing while removing the defect list existing on the test disk, the DMA generated or updated by the recording and reproducing apparatus. A verification method, comprising: generating test information from information; and performing a test for verifying the test information using the test criteria. 43. The verification method according to claim 42, wherein the test information is a DMA mirror file. 44. The test information is stored in a D of a test disc.
43. The verification method according to claim 42, wherein reading is performed directly from the MA area. 45. The verification method according to claim 42, wherein the generation of the test information includes a step of recording a DMA having a fixed content in advance and selecting a DMA mirror file in which an additional space is not tightly packed. 46. The verification method, comprising the steps of: forming a known physical defect on a blank disk to obtain a first test disk; and recording a previously fixed DMA on the first test disk. Recording a mirror file indicating that the additional spare space is not tightly packed on the first test disk to obtain a second test disk, and using the second test disk to generate the test information. The verification method according to claim 45, further comprising: 47. The test execution step checks whether the DMA information of the second test disk has a predetermined DMA structure, checks whether a P list and a G1 list are maintained, and removes the G2 list and the SDL. 47. The verification method according to claim 46, further comprising: performing a re-initialization while removing a defect list including checking whether the start logical sector number of each area of the second test disk has been checked. 48. A method for recording information on an optical disk having DMA information and reproducing the information from the optical disk by a recording and reproducing apparatus to verify whether the DMA information is generated or updated correctly. Generating test information from the DMA information generated or updated by the recording or reproducing apparatus in a test mode for removing and reinitializing an existing defect list; and using a test standard for verifying the DMA information. And verifying the test information. 49. The verification method according to claim 48, wherein the test information is a DMA mirror file. 50. A recording and reproducing apparatus for recording information on a recordable and reproducible optical disk having DMA information and reproducing the information from the optical disk to check whether the DMA information is generated or updated correctly. Wherein the recording and reproducing apparatus removes a defect list present on the test disk and reinitializes while removing a defect list present on a test disk having a DMA mirror file corresponding to the reinitialization. A modified driver unit for generating test information from the generated or updated DMA information of a test disk obtained after performing the above-mentioned operation, and a re-initialization while removing a defect list existing in the test information and the test disk. And a verifier for comparing predetermined test information to verify a test result. 51. The test apparatus according to claim 50, wherein said test information is a DMA mirror file. 52. The test apparatus according to claim 50, wherein the modified driver unit reads the test information from a DMA area of the test disk and provides the test information to the verifier. 53. The test disk according to claim 1, wherein a free disk is provided with a known physical defect and a spare file area is not tightly packed. The test apparatus according to claim 52, wherein the test apparatus is a recorded second test disk. 54. The recording / reproducing apparatus performs re-initialization while removing a defect list present on the test disk, and the verifier checks whether the DMA information of the second test disk has a predetermined DMA structure. Check that the list and G1 list are maintained, and check the G2 list and S
54. The test apparatus according to claim 53, wherein it is checked whether the DL list has been removed and a start logical sector number of each area of the second test disk is checked. 55. A method for verifying whether a recording and reproducing apparatus is correctly recording and processing DMA information, comprising the steps of: detecting a defect present on a test disc including predetermined defect information using the recording and reproducing apparatus; A verification method, comprising: performing re-initialization while removing a list to generate test information; and comparing the test information with the reference test information to determine verification of the recording and reproducing apparatus. 56. The method according to claim 56, further comprising: producing a known physical defect at a predetermined position on the empty disk to produce a first test disk; and recording a DMA having predetermined contents on the first test disk. Obtaining a second test disk for recording a mirror file indicating that the additional margin area is not tightly packed in the first test disk; and the recording and / or reproducing apparatus removing a defect list of the second test disk. Generating a second test disk having DMA information while reinitializing the test DMA mirror file by reading only the DMA information from the second test disk having the DMA information using a reference disk drive Generating the reference test information as test information, wherein the reference test information is a reference DMA mirror file. Verification method according to claim 55, characterized in that. 57. The comparing step checks whether the DMA information of the second test disk has a predetermined DMA structure, checks whether the P list and the G1 list are maintained, and determines whether the G2 list and the SDL list have been removed. 57. The verification method according to claim 56, further comprising: checking the start logical sector number of each area of the second test disk. 58. A method for verifying that a recording and reproducing apparatus is correctly translating and processing defect information, comprising the steps of:
Preparing a test disk having a mirror file; generating test information based on the recording and reproducing apparatus performing re-initialization while removing a defect list existing on the test disk; Validating the test against. 59. The verification method according to claim 58, wherein the test reference DMA mirror file includes information about defects concentrated around a physical sector located where a first logical sector is assumed to be located. 60. The test reference DMA mirror file includes first and last sectors of each area to be treated as an error, and includes defective sectors set so that the total number of sectors available for each area does not become a multiple of 16. A verification method according to claim 59. 61. A method of verifying whether a recording and reproducing apparatus reads and processes DMA information correctly, comprising the steps of: using a physical defect known in advance using the recording and reproducing apparatus; a test reference DMA mirror file; Generating the DMA information by performing a re-initialization while removing a defect list existing on a test disk having the following information; generating test information from the generated DMA information; Determining the verification of the recording and reproducing apparatus by comparing the information with information. 62. The verification method according to claim 61, wherein the test reference DMA mirror file includes information about a defect concentrated around a physical sector located where a first logical sector is assumed to be located. 63. The test reference DMA mirror file includes first and last sectors of each area to be treated as an error, and includes a defective sector set so that the total number of sectors available for each area does not become a multiple of 16. The verification method according to claim 62. 64. The comparing step includes a DMA structure forming the test information, a DDS of the DMA, and a PDS of the DMA.
The verification method according to claim 59, further comprising checking a DL structure and an SDL structure. 65. The DMA information accurately generated by the recording and reproducing apparatus, wherein the DMA information is present on a test disk including a physical defect and a test reference DMA mirror file known in advance using the recording and reproducing apparatus. A process of generating DMA information by performing re-initialization while removing a defect list; a process of generating test information from the generated DMA information; and comparing the test information with reference test information to perform the recording and reproducing. DMA using process to determine device verification
information. 66. The DMA information of claim 65, wherein the test reference DMA mirror file includes information about defects concentrated around a physical sector located where the first logical sector is assumed to be located. 67. The test reference DMA mirror file includes first and last sectors of each area to be treated as an error, and includes a defective sector set so that the total number of sectors available for each area is not a multiple of 16. The DMA information according to claim 66. 68. The comparing step includes a DMA structure forming the test information, a DDS of the DMA, and a PDS of the DMA.
66. The DMA information of claim 65, including checking DL and SDL structures. 69. A recording and reproducing apparatus, comprising: using a recording and reproducing apparatus to remove a physical defect known in advance and a defect list existing on a test disk including a test reference DMA mirror file, and reinitialize the defect. Processing to generate DMA information by performing conversion, processing to generate test information from the generated DMA information, and processing to determine the verification of the recording and reproducing apparatus by comparing the test information with reference test information. And the equipment verified by. 70. The recording and reproducing apparatus according to claim 69, wherein the test reference DMA mirror file includes information on a defect concentrated around a physical sector located where a first logical sector is assumed to be located. apparatus. 71. The test reference DMA mirror file includes first and last sectors of each area to be treated as an error, and includes a defective sector set so that the total number of sectors available for each area does not become a multiple of 16. A recording and reproducing apparatus according to claim 70. 72. The comparing step includes a DMA structure forming the test information, a DDS of the DMA, and a PDS of the DMA.
70. The recording and reproducing apparatus according to claim 69, comprising checking a DL structure and an SDL structure. 73. A recording and reproducing apparatus, comprising: using a recording and reproducing apparatus to remove a physical defect known in advance and a defect list existing on a test disk including a test reference DMA mirror file and reinitializing the defect. A recording and reproducing apparatus verified by a process of generating the DMA information by performing the conversion and a process of determining the verification of the recording and reproducing device by comparing the test information with the reference test information. 74. The recording and playback apparatus of claim 73, wherein the test reference DMA mirror file includes information about defects concentrated around a physical sector located where the first logical sector is assumed to be located. apparatus. 75. The test reference DMA mirror file includes first and last sectors of each area to be treated as an error, and includes a defective sector set so that the total number of sectors available for each area does not become a multiple of 16. A recording and reproducing apparatus according to claim 74. 76. The comparing step includes a DMA structure forming the test information, a DDS of the DMA, and a PDS of the DMA.
The recording and reproducing apparatus according to claim 73, further comprising checking a DL structure and an SDL structure. 77. A recording and reproducing apparatus for recording information on a recordable and reproducible optical disk having DMA information and reproducing information from the optical disk to check whether the DMA information is correctly generated. An apparatus for performing a re-initialization while removing a physical defect known in advance using the recording and reproducing apparatus and a defect present on a test disk including a test reference DMA mirror file using the recording and reproducing apparatus. A modified driver that generates test information based on the DMA information of the test disk thus generated to generate DMA information, a verifier that compares the test information with reference test information and determines verification of the recording and reproducing apparatus. Equipment including. 78. The modified driver reads only DMA information from the test disk having DMA information, and
The apparatus of claim 77, wherein an A mirror file is generated as the test information, and the reference test information is a reference DMA mirror file. 79. The deformed driver records a DMA of a fixed content on a first test disk having a known physical defect, and the first test disk does not have a tightly packed additional margin area. A second test disc is generated by recording a test reference DMA mirror file indicating that the second test disc is present, and the recording and reproducing apparatus performs re-initialization while removing a defect list existing on the second test disc to perform the DM test.
Generating a second test disk having A information; the modified driver reading only DMA information from the second test disk having the DMA information to generate a test DMA mirror file as the test information; The apparatus of claim 77, wherein the apparatus is a reference DMA mirror file. 80. The recording / reproducing apparatus performs re-initialization while removing a defect list existing on the second test disk, and the verifier performs DMA on the second test disk.
Check whether the information is in accordance with a predetermined DMA structure,
Check if you maintain the list and G1 list,
80. The apparatus of claim 79, wherein checking whether the G2 list and SDL have been removed, and checking the starting logical sector number of each area of the second test disk. 81. The verifier may include a DMA structure forming the test information, a DDS of the DMA, and a PD of the DMA.
78. The apparatus of claim 77, wherein an L structure and an SDL structure are checked to compare the test information with the reference test information. 82. The apparatus of claim 77, wherein the test reference DMA mirror file includes information about defects concentrated around a physical sector located where the first logical sector is assumed to be located. 83. The test reference DMA mirror file includes first and last sectors of each area to be treated as an error, and includes defective sectors set so that the total number of sectors available for each area does not become a multiple of 16. The apparatus of claim 82. 84. The apparatus according to claim 5, further comprising: a DMA mirror file provider that provides the reference test information to the verifier to compare the test information with the reference test information.
The apparatus according to claim 0. 85. The recording and reproducing apparatus provides the reference test information to the verifier to compare the DMA mirror file with the reference DMA mirror file.
69. The recording and reproducing apparatus according to claim 68, further comprising an A mirror file provider. 86. A method of manufacturing a recording and reproducing apparatus conforming to a standard, comprising the steps of: producing an unverified recording and reproducing apparatus for updating and generating DMA information; Verifying whether or not the test list is correct. The verifying step includes re-initializing while removing a defect list existing on a test disk including predetermined defect information and test reference DMA information using the recording and reproducing apparatus. And generating test information by comparing the test information with reference test information to determine the verification of the recording and reproducing apparatus. The verification is performed by the recording and reproducing apparatus that is not verified. A method characterized by indicating whether it conforms to a standard. 87. The comparing step includes a DMA structure forming the test information, a DDS of the DMA, and a PDS of the DMA.
87. The method of claim 86, comprising checking DL and SDL structures. 88. A disk recording and reproducing apparatus for recording and reproducing information on and from an optical disk, a light source for emitting light, a focusing element for focusing light on the optical disk for recording and reproducing information, and controlling the light source And performing a re-initialization while removing a defect list existing on a test disk including predetermined defect information and test reference DMA information using the recording and reproducing apparatus. A disc that is verified to update and generate the DMA information by generating test information and determining verification of the recording and reproducing apparatus by comparing the test information with reference test information. Recording and playback device. 89. The comparing step includes a DMA structure forming the test information, a DDS of the DMA, and a PDS of the DMA.
89. The disc recording and reproducing apparatus according to claim 88, comprising checking a DL structure and an SDL structure. 90. A disc recording and reproducing apparatus for recording and reproducing information on an optical disk, a light source for emitting light, a focusing element for focusing light on the optical disk for recording and reproducing information, and controlling the light source A disc recording and reproducing apparatus including a controller for updating and generating DMA information after removing and re-initializing a defect list existing on the optical disc so that the defect management information conforms to a standard. 91. The controller, wherein the controller comprises a DMA structure forming the test information, a DDS of the DMA, and a PD of the DMA.
90. The disc recording and reproducing apparatus according to claim 90, comprising checking an L structure and an SDL structure. 92. The method of claim 13, wherein verifying the DDS further comprises checking whether remaining spare space has a predetermined value. 93. The method of claim 15, wherein verifying the PDL structure comprises checking whether unused space is a predetermined value. 94. The DMA mirror file includes a P list having information on defective sectors defined by a disk manufacturer, a G1 list having information on defective sectors detected during a verification period for the test disk,
51. The apparatus of claim 50, comprising a G2 list with information about defective sectors moved to SDL without verification. 95. The test reference DMA mirror file includes a P list having information on defective sectors defined by a disk manufacturer, and a G having information on defective sectors detected during a verification period for the test disk.
59. The apparatus of claim 58, wherein the list comprises a G2 list with information about defective sectors moved to the SDL without verification. 96. The test reference DMA mirror file includes a P list having information on defective sectors defined by a disk manufacturer, and a G having information on defective sectors detected during a verification period for the test disk.
66. The apparatus of claim 65, comprising one list, a G2 list with information about defective sectors moved to the SDL without verification. 97. The test reference DMA mirror file includes a P list having information on defective sectors defined by a disk manufacturer, and a G having information on defective sectors detected during a verification period for the test disk.
70. The apparatus of claim 69, comprising one list, a G2 list with information about defective sectors moved to the SDL without verification. 98. The test reference DMA mirror file includes a P list having information on defective sectors defined by a disk manufacturer, and a G having information on defective sectors detected during a test period for the test disk.
74. The apparatus of claim 73, comprising one list, a G2 list with information about defective sectors moved to the SDL without verification. 99. The test reference DMA mirror file includes a P list having information on defective sectors defined by a disk manufacturer, and a G having information on defective sectors detected during a verification period for the test disk.
78. The apparatus of claim 77, comprising a list, a G2 list with information about defective sectors moved to the SDL without verification. 100. The method of claim 100, wherein the step of generating the test information includes the step of generating the test information according to re-initialization while removing a defect list present on the test disk, and the step of verifying removes the defect list. 43. The method according to claim 42, further comprising checking whether the defect information registered in the SDL and the defect information registered in the G2 list of the PDL after the re-initialization are organized. 101. The recording / reproducing apparatus performs re-initialization while removing the defect list, and the verifier performs re-initialization while removing the defect list, and then deletes the defect information registered in the SDL and the PDL. 51. The recording and reproducing apparatus according to claim 50, wherein it is checked whether the defect information registered in the G2 list is arranged. 102. The step of performing the re-initialization includes performing the re-initialization while removing the defect list, and the verifying step is performed after the re-initialization while removing the defect list and registered in the SDL. 66. The DMA information according to claim 65, comprising checking whether the defect information and the defect information registered in the G2 list of the PDL are arranged. 103. The step of performing the re-initialization includes performing the re-initialization while removing the defect list, and the comparing step is performed after the re-initialization while removing the defect list and registered in the SDL. 87. The method according to claim 86, comprising checking whether the defect information and the defect information registered in the P2 G2 list are organized. 104. The method of claim 4, wherein the reinitialization step is performed without verification while removing the defect list.
3. The method according to 2. 105. The reinitialization step while removing the defect list is performed without verification.
The method according to 0. 106. The reinitialization step while removing the defect list is performed without verification.
5. The method according to 5. 107. The method of claim 8, wherein the reinitialization step is performed without verification while removing the defect list.
7. The method according to 6.